CN113715418A - Foam sandwich composite board and forming process thereof - Google Patents

Foam sandwich composite board and forming process thereof Download PDF

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Publication number
CN113715418A
CN113715418A CN202111045039.1A CN202111045039A CN113715418A CN 113715418 A CN113715418 A CN 113715418A CN 202111045039 A CN202111045039 A CN 202111045039A CN 113715418 A CN113715418 A CN 113715418A
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CN
China
Prior art keywords
foam core
fabric layer
foam
core materials
core material
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Granted
Application number
CN202111045039.1A
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Chinese (zh)
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CN113715418B (en
Inventor
谈源
汤娟
别建伟
王瑞
张美珍
田磊
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Changzhou New Intelligent Technology Co Ltd
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Changzhou New Intelligent Technology Co Ltd
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Priority to CN202111045039.1A priority Critical patent/CN113715418B/en
Publication of CN113715418A publication Critical patent/CN113715418A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/18—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by an internal layer formed of separate pieces of material which are juxtaposed side-by-side
    • B32B3/20—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by an internal layer formed of separate pieces of material which are juxtaposed side-by-side of hollow pieces, e.g. tubes; of pieces with channels or cavities
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • B29C70/08—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
    • B29C70/342—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation using isostatic pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/36—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and impregnating by casting, e.g. vacuum casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • B29C70/541—Positioning reinforcements in a mould, e.g. using clamping means for the reinforcement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • B29C70/542—Placing or positioning the reinforcement in a covering or packaging element before or during moulding, e.g. drawing in a sleeve
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • B29C70/545—Perforating, cutting or machining during or after moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/681—Component parts, details or accessories; Auxiliary operations
    • B29C70/682—Preformed parts characterised by their structure, e.g. form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/70—Completely encapsulating inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/04—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by at least one layer folded at the edge, e.g. over another layer ; characterised by at least one layer enveloping or enclosing a material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
    • B32B3/085—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts spaced apart pieces on the surface of a layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
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    • B32—LAYERED PRODUCTS
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    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/245—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it being a foam layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
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    • B32B2262/10—Inorganic fibres
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  • Engineering & Computer Science (AREA)
  • Composite Materials (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention relates to the technical field of composite materials, in particular to a foam sandwich composite board and a forming process thereof, wherein the composite material comprises the following components in parts by weight: the four surfaces of the foam core materials, which are parallel to the length extension direction, are provided with a plurality of through holes, and the length extension direction of the through holes is vertical to the length extension direction of the foam core materials; the first fabric layer wraps four surfaces, parallel to the length extension direction, of the foam core material; the two second fabric layers are arranged in parallel, a plurality of foam core materials wrapped by the first fabric layers are arranged between the two second fabric layers, and the arrangement direction of the foam core materials is perpendicular to the length extension direction of the foam core materials; resin is soaked among the second fabric layer, the first fabric layer and the foam core material, and the second fabric layer, the first fabric layer and the foam core material are cured and molded. According to the foam sandwich composite board and the preparation method thereof, the structural strength and the shear strength are greatly increased, so that the overall performance of the foam sandwich composite board is improved, and the foam sandwich composite board can be suitable for more scenes.

Description

Foam sandwich composite board and forming process thereof
Technical Field
The invention relates to the technical field of composite materials, in particular to a foam sandwich composite board and a forming process thereof.
Background
The existing refrigeration and heat preservation carriage has two types of box plate materials, wherein the first type is that the outer layer is of a metal structure and the inner part is a metal framework which is injected with foaming materials; the second type of material has a sandwich structure with a foam plate in the middle and a glass fiber composite material in the outer layer, and the second type of foam sandwich composite plate is increasingly used in the process of pursuing light weight.
The traditional foam sandwich composite board is mainly characterized in that a core material and a panel or a skin are bonded together through a bonding agent, and the foam core material is generally low in strength and rigidity, so that the rigidity and the strength of the traditional foam sandwich composite board are also low, particularly the interface strength between the panel and the core material and the integral shear strength, the integral performance of the traditional foam sandwich composite board is greatly reduced, and the application of the traditional foam sandwich composite board is limited.
In view of the above problems, the designer is based on the practical experience and professional knowledge that are abundant for many years in engineering application of such products, and is actively researched and innovated in cooperation with the application of theory, so as to create a foam sandwich composite board and a forming process thereof, and the foam sandwich composite board has higher practicability.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention provides a foam sandwich composite board and a forming process thereof, thereby effectively solving the problems in the background technology.
In order to achieve the purpose, the invention adopts the technical scheme that: a foam sandwich composite panel comprising:
the foam core material comprises a plurality of foam core materials, wherein a plurality of through holes are formed in four surfaces of the foam core materials, which are parallel to the length extension direction, and the length extension direction of the through holes is vertical to the length extension direction of the foam core materials;
the first fabric layer is wound outside each foam core material and wraps four surfaces, parallel to the length extension direction, of the foam core material;
the two second fabric layers are arranged in parallel, a plurality of foam core materials wrapped by the first fabric layers are arranged between the two second fabric layers, and the arrangement direction of the foam core materials is perpendicular to the length extension direction of the foam core materials;
and resin is soaked among the second fabric layer, the first fabric layer and the foam core material, and the second fabric layer, the first fabric layer and the foam core material are cured and molded.
Furthermore, unidirectional yarns are arranged between the second fabric layer and every two foam core materials wrapped by the first fabric layer, gaps between the second fabric layer and every two foam core materials are filled with the unidirectional yarns, and the unidirectional yarns are parallel to the length extension direction of the foam core materials.
Furthermore, grooves are formed in the positions, close to the surface of the foam core material, of the through holes, the grooves are circular in the surface of the foam core material, and the diameter of the circle is larger than that of the through holes.
Further, the grooves are tapered ramp or arc surfaces inward from the surface of the foam core.
Further, the first fabric layer and the second fabric layer are made of any one or more of carbon fibers, glass fibers, aramid fibers and basalt fibers.
The invention also comprises a forming process of the foam sandwich composite board, which comprises the following steps:
punching four surfaces of a plurality of foam core materials parallel to the length direction, and wrapping a first fabric layer on each foam core material;
arranging a plurality of foam core materials wrapped by the first fabric layer in parallel on one second fabric layer, and laying the other second fabric layer at the top end;
after the fabric is laid, putting the whole fabric into a vacuum bag, vacuumizing and infusing resin;
putting the fabric and the vacuum bag into an oven for heating and curing;
cooling and demoulding after solidification and forming, and carrying out surface treatment on the workpiece.
Further, when a plurality of foam core materials wrapped by the first fabric layer are arranged in parallel, unidirectional yarns are placed and filled in the gap between every two foam core materials, wherein the unidirectional yarns are parallel to the length extending direction of the foam core materials.
Furthermore, when four surfaces of the foam core materials parallel to the length direction are punched, grooves are formed at the positions, close to the surfaces of the foam core materials, of two ends of each through hole.
Further, before punching the foam core material, cleaning the surface of the foam core material; and after punching, cleaning the surface of the foam core material and the chips in the through holes.
The invention has the beneficial effects that: according to the foam core composite board, the foam core materials, the first fabric layer and the second fabric layer are arranged, the through holes are formed in the four surfaces of the foam core materials, resin can flow conveniently when resin is infiltrated, the infiltration effect is good, the foam core materials can be supported after the resin in the through holes is cured and formed, the structural strength of the foam core materials is improved, the second fabric layer is laid after the first fabric layer is wrapped outside the foam core materials, the original bonding of the foam and the skin is changed into the curing and forming between the fabrics, the first fabric layer is wrapped on the foam core materials, the foam core materials and the first fabric are connected into a whole through the through holes by the resin, the structural strength and the anti-shearing strength of the foam core composite board are greatly improved, the overall performance of the foam core composite board is greatly improved, and the foam core composite board can be suitable for more scenes.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a front view of the present embodiment after the fabric is laid;
FIG. 2 is a schematic view of the structure of a foam core;
FIG. 3 is a schematic view of the groove being a ramp surface;
FIG. 4 is a schematic view of the groove being an arcuate surface;
fig. 5 is a front view after curing and molding.
Reference numerals: 1. a foam core material; 11. a through hole; 12. a groove; 2. a first fabric layer; 3. a second fabric layer; 4. a unidirectional yarn.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 5: a foam sandwich composite panel comprising:
the foam core material comprises a plurality of foam core materials 1, wherein a plurality of through holes 11 are formed in four surfaces of the foam core materials 1 parallel to the length extension direction, and the length extension direction of the through holes 11 is vertical to the length extension direction of the foam core materials 1;
the first fabric layer 2 is wound outside each foam core material 1, and the first fabric layer 2 wraps four surfaces, parallel to the length extension direction, of the foam core materials 1;
the two second fabric layers 3 are arranged in parallel, the plurality of foam core materials 1 wrapped with the first fabric layer 2 are arranged between the two second fabric layers 3, and the arrangement direction of the plurality of foam core materials 1 is vertical to the length extension direction of the foam core materials 1;
resin is soaked among the second fabric layer 3, the first fabric layer 2 and the foam core material 1, and the resin is cured and molded.
By arranging a plurality of foam core materials 1, a first fabric layer 2 and a second fabric layer 3, wherein a plurality of through holes 11 are arranged on four surfaces of the foam core materials 1, when resin is infiltrated, the resin can flow conveniently, the infiltration effect is good, and the foam core material 1 can be supported after the resin in the through hole 11 is cured and molded, so that the structural strength is improved, after the foam core material 1 is wrapped by the first fabric layer 2, the second fabric layer 3 is laid, so that the original bonding between the foam and the skin is changed into the curing molding between the fabrics, the first fabric layer 2 is wrapped on the foam core material 1, the resin connects the foam core material 1 and the first fabric layer 2 into a whole through the through holes 11, the structural strength and the shear strength of the fabric are greatly improved, therefore, the overall performance of the foam sandwich composite board is greatly improved, and the foam sandwich composite board can be suitable for more scenes.
Because after the foam core material 1 is wrapped by the first fabric layer 2, four edges of the foam core material 1 may become round corners, when the foam core materials 1 wrapped by a plurality of first fabric layers 2 are arranged in parallel, because of the existence of the round corners between every two foam core materials 1, when the second fabric layer 3 is laid, a gap exists between the second fabric layer 3 and the two first fabric layers 2, in order to eliminate the gap, a unidirectional yarn 4 is arranged between the second fabric layer 3 and every two foam core materials 1 wrapped by the first fabric layers 2, the gap is filled by the unidirectional yarn 4, and the unidirectional yarn 4 is parallel to the length extending direction of the foam core materials 1, so that after subsequent resin infiltration and solidification molding, no cavity is generated, and the product quality is influenced.
In this embodiment, the plurality of through holes 11 are provided with grooves 12 near the surface of the foam core 1, the grooves 12 being circular in the surface of the foam core 1, the diameter of the circle being larger than the diameter of the through holes 11.
Through being provided with recess 12 at through-hole 11 near foam core 1 surface department, the resin soaks the solidification back, and the resin here because the existence of recess 12 can be poured into the nodose for foam core composite board can be better when receiving load especially crooked load, transmits, thereby increases its structural strength, obtains better bending strength and shear strength.
Wherein the groove 12 may be arranged as a gradually tapering slope or arc inwardly from the surface of the foam core 1.
As a preference of the above embodiment, the first fabric layer 2 and the second fabric layer 3 are composed of any one or more of carbon fiber, glass fiber, aramid fiber, and basalt fiber.
The embodiment also comprises a forming process of the foam core material 1 composite material, which comprises the following steps:
punching four surfaces of a plurality of foam core materials 1 parallel to the length direction, and wrapping a first fabric layer 2 on each foam core material 1;
arranging a plurality of foam core materials 1 wrapped by the first fabric layer 2 in parallel on one second fabric layer 3, and laying another second fabric layer 3 at the top end;
after the fabric is laid, putting the whole fabric into a vacuum bag, vacuumizing and infusing resin;
putting the fabric and the vacuum bag into an oven for heating and curing;
cooling and demoulding after solidification and forming, and carrying out surface treatment on the workpiece.
Through punching four faces at foam core 1 parallel to length direction, when infiltration resin, make things convenient for the resin to flow, it is effectual to soak, and behind the resin curing molding in the through-hole 11, can support foam core 1, increase its structural strength, after wrapping up first fabric layer 2 outside foam core 1, carry out laying of second fabric layer 3 again, make the bonding of original foam and covering become the curing molding between the fabric, and first fabric layer 2 wraps up on foam core 1, the resin links into a whole with foam core 1 and first fabric layer 2 through-hole 11, greatly increased its structural strength and anti-shear strength, thereby greatly increased foam core composite sheet's wholeness ability, make foam core composite sheet can be applicable to more scenes.
In the present embodiment, when several foam core materials 1 wrapped by the first fabric layer 2 are arranged in parallel, the unidirectional yarns 4 are placed and filled in the gaps between every two foam core materials 1, wherein the unidirectional yarns 4 are parallel to the length extension direction of the foam core materials 1.
Because after the foam core material 1 is wrapped by the first fabric layer 2, four edges of the foam core material 1 may become round corners, when the foam core materials 1 wrapped by a plurality of first fabric layers 2 are arranged in parallel, because of the existence of the round corners between every two foam core materials 1, when the second fabric layer 3 is laid, a gap exists between the second fabric layer 3 and the two first fabric layers 2, in order to eliminate the gap, a unidirectional yarn 4 is arranged between the second fabric layer 3 and every two foam core materials 1 wrapped by the first fabric layers 2, the gap is filled by the unidirectional yarn 4, and the unidirectional yarn 4 is parallel to the length extending direction of the foam core materials 1, so that after subsequent resin infiltration and solidification molding, no cavity is generated, and the product quality is influenced.
As a preference of the above embodiment, when punching a plurality of four surfaces of the foam core material 1 parallel to the longitudinal direction, the grooves 12 are provided at both ends of the through-hole 11 near the surface of the foam core material 1.
Through being provided with recess 12 at through-hole 11 near foam core 1 surface department, the resin soaks the solidification back, and the resin here because the existence of recess 12 can be poured into the nodose for foam core composite board can be better when receiving load especially crooked load, transmits, thereby increases its structural strength, obtains better bending strength and shear strength.
Before the foam core material 1 is punched, the surface of the foam core material 1 is cleaned to prevent foreign matters; after punching, the surface of the foam core material 1 and the chips in the through holes 11 are cleaned, so that the chips are prevented from being remained, and the strength of the cured and molded resin is influenced.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (9)

1. A foam sandwich composite panel, comprising:
the foam core material comprises a plurality of foam core materials, wherein a plurality of through holes are formed in four surfaces of the foam core materials, which are parallel to the length extension direction, and the length extension direction of the through holes is vertical to the length extension direction of the foam core materials;
the first fabric layer is wound outside each foam core material and wraps four surfaces, parallel to the length extension direction, of the foam core material;
the two second fabric layers are arranged in parallel, a plurality of foam core materials wrapped by the first fabric layers are arranged between the two second fabric layers, and the arrangement direction of the foam core materials is perpendicular to the length extension direction of the foam core materials;
and resin is soaked among the second fabric layer, the first fabric layer and the foam core material, and the second fabric layer, the first fabric layer and the foam core material are cured and molded.
2. The foam sandwich composite panel according to claim 1, wherein unidirectional yarns are arranged between the second fabric layer and each two foam core materials wrapped with the first fabric layer, the unidirectional yarns fill the gap, and the unidirectional yarns are parallel to the length extension direction of the foam core materials.
3. The foam sandwich composite panel according to claim 1, wherein a plurality of the through holes are provided with grooves near the surface of the foam core material, the grooves are circular on the surface of the foam core material, and the diameter of the circle is larger than that of the through holes.
4. The foam sandwich composite panel according to claim 3, wherein the grooves are tapered sloped or arcuate inwardly from the surface of the foam core.
5. The foam sandwich composite panel according to claim 1, wherein the first fabric layer and the second fabric layer are composed of any one or more of carbon fiber, glass fiber, aramid fiber, and basalt fiber.
6. A forming process of a foam sandwich composite board is characterized by comprising the following steps:
punching four surfaces of a plurality of foam core materials parallel to the length direction, and wrapping a first fabric layer on each foam core material;
arranging a plurality of foam core materials wrapped by the first fabric layer in parallel on one second fabric layer, and laying the other second fabric layer at the top end;
after the fabric is laid, putting the whole fabric into a vacuum bag, vacuumizing and infusing resin;
putting the fabric and the vacuum bag into an oven for heating and curing;
cooling and demoulding after solidification and forming, and carrying out surface treatment on the workpiece.
7. The process of claim 6, wherein when the foam core materials wrapped by the first fabric layer are arranged in parallel, the gaps between every two foam core materials are filled with unidirectional yarns, wherein the unidirectional yarns are parallel to the length extension direction of the foam core materials.
8. The process for forming a foam sandwich composite panel according to claim 6, wherein when four sides of the plurality of foam core materials parallel to the length direction are perforated, grooves are formed at both ends of the through holes near the surfaces of the foam core materials.
9. The molding process of the foam sandwich composite board according to claim 8, wherein the surface of the foam core material is cleaned before the foam core material is perforated; and after punching, cleaning the surface of the foam core material and the chips in the through holes.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114194242A (en) * 2022-01-04 2022-03-18 常州市新创智能科技有限公司 Rail train bogie frame structure and forming method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201162284Y (en) * 2008-03-11 2008-12-10 任金芳 Cement mortar surface sandwich foam heat preservation thermal shield
FR2989021A1 (en) * 2012-04-05 2013-10-11 Jean Philippe Pisano Sandwich panel, useful for thermal and/or acoustics insulation in e.g. walls of buildings, comprises outer facing covered with antivibratory membranous complex including external membrane consisted of thin layer or sheet of PVC
CN205429161U (en) * 2015-12-22 2016-08-03 中国航空工业集团公司济南特种结构研究所 Radome sandwich structure
CN210390356U (en) * 2019-07-11 2020-04-24 山东中航泰达复合材料有限公司 Composite material foam sandwich structure capable of ensuring product flatness
CN111873595A (en) * 2020-08-26 2020-11-03 中复连众(安阳)复合材料有限公司 Preparation method of foam sandwich composite structure and structure thereof
JP6840277B1 (en) * 2020-02-25 2021-03-10 株式会社すぎはら Laminated board manufacturing method
CN212765145U (en) * 2020-06-03 2021-03-23 武汉海威船舶与海洋工程科技有限公司 Z-direction reinforced protective composite material sandwich structure

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201162284Y (en) * 2008-03-11 2008-12-10 任金芳 Cement mortar surface sandwich foam heat preservation thermal shield
FR2989021A1 (en) * 2012-04-05 2013-10-11 Jean Philippe Pisano Sandwich panel, useful for thermal and/or acoustics insulation in e.g. walls of buildings, comprises outer facing covered with antivibratory membranous complex including external membrane consisted of thin layer or sheet of PVC
CN205429161U (en) * 2015-12-22 2016-08-03 中国航空工业集团公司济南特种结构研究所 Radome sandwich structure
CN210390356U (en) * 2019-07-11 2020-04-24 山东中航泰达复合材料有限公司 Composite material foam sandwich structure capable of ensuring product flatness
JP6840277B1 (en) * 2020-02-25 2021-03-10 株式会社すぎはら Laminated board manufacturing method
CN212765145U (en) * 2020-06-03 2021-03-23 武汉海威船舶与海洋工程科技有限公司 Z-direction reinforced protective composite material sandwich structure
CN111873595A (en) * 2020-08-26 2020-11-03 中复连众(安阳)复合材料有限公司 Preparation method of foam sandwich composite structure and structure thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114194242A (en) * 2022-01-04 2022-03-18 常州市新创智能科技有限公司 Rail train bogie frame structure and forming method

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